2nd - (idk if this is "fair", but obviously the dad gets the upside)
son: Percy Harvin
for
dad: DeSean Jackson

I am friends with both of them, but im afraid that if I allow either trade, it is not going to make it fun for the rest of the league. Should I allow the "2nd Trade" or not. If not, should i compromise and allow them to trade Defenses...

How late in the season do you allow trades? And I take it no league votes on trades? I see no problem with it since both players are dealing with injuries right now and Jackson with a poor offensive unit and a back up QB. To me Harvin has the better upside or am I reading it backwards and the 'dad' is getting Harvin?